Sorry - I wasn't notified of updates to this thread even though I am *watching* it - is still a work in progress sorry guys, I now have a Windows 8 Phone so I'll look at having it work across both Win8/WinPhone8 if I can. Just so you know it is still going to be a good couple of months away and will likely start simple and build from there.

Realy looking forward to a Metro style Toodledo app.
For me key functionality are
- perfect sync of course
- clean interface with a focus on "hotlist"
- superfast and easy adding of a new task with the possibility to edit details later if needed only.
- Live tile with hotlist

I would really like to see an option that allows users to plan their weeks by dragging and dropping to do items. I try to do this manually every Monday but it would be a lot smoother if I could link it into my main toodledo page. Also, agree that it should be clean and simple without sacrificing too much functionality.